Current sourcing and sinking of AT89C51CC03
Dear I am trying to find out how much an I/O pin of the MCU can source our sink. I need to pull 4 enable pins of an ic high with 1mA with port 2 of the AT89C51CC03 that is powered on 3,3V (and voltage...
View ArticleInterfacing two serial devices with stm mcu
I want to interface two different UART modules (GPS and RFID) with stm mcu. Willing to connect it as USB host to Android phone and try to communicate with device via application. I need help , from...
View ArticleSTM8S003
IF INPUT TO STM8S003 IS SQUARE WAVE OF SAY 2MS THEN LED AT PORT A WILL BLINK AND IF ANOTHER SQUARE WAVE OF SAY 1MS IS APPLIED AT SAME INPUT PIN THEN LED AT PORTB WILL BLINK.....CAN ANYONE HELP ME HOW...
View ArticlePIC18f45k22 timer 1 not working properly
I am using PIC18f45k22's timer 1 to display D.PIC for 1 second on my 4 digit 7-segment led and after 1 second led should remain off for next 1 second. This should continue. I am getting what i wrote...
View ArticleTurning Arduino Prototype into final product
Hi I am working with arduino pro mini and bluetooth (HC-05) to turn led on/off using mobile phone. I am done with the first protoype. I want to reduce the size of whole circuit. Any advice on using...
View ArticleRaspberry Pi zero with camera
I just bought a raspberry pi zero and some other stuff from [mod. edit: link deleted, irrelevant] I am using it for image processing! Can you guyz tell me that the camera used for raspberry pi 3 will...
View ArticleLowest power possible for driving segment LCD glass with accurate time
What is the lowest power possible for driving segment LCD glass where most of the time the LCD display will just display the time with an accuracy of at least 20ppm. As I understand the components...
View ArticleMeasure the current of 3 phase induction motor
I am working on a project to the measure the load current of 3 phase induction motor through CT's, can someone guide me through this project e.g - what type of CT i have to choose (ACS 758?) -should i...
View ArticleWhich Microcontroller to Choose
Hello, I am a mechanical engineering graduate and I am looking interested in a career in the automotive industry in the field of electronic control systems. I know how to program in C but I am very new...
View ArticleTemperature measurement with LM35
Hi I am also a newbie in this world of MCU, Can you please help me with measurement tempetature with LM35 . I am struggling to figure it out how it works. Thank in Advance
View ArticleEEPROM read/write operation using stm8s003....
please some one guide me how to use eeprom in stm8s003......
View ArticleHow to find RPM of motor using KY-040 Rotary Decoder Encoder
I tried many online tutorials but I couldn't get any program that is working for calculating rpm using KY-040 Rotary Decoder Encoder. Some one can please tell me the formula for it. I am using...
View ArticleHelp with TFT LCD
Hi all, I have salvaged a tft lcd from an epson printer and I want to interface it to an atmega. I couldn't find a datasheet of the ic on the lcd but I found the connector pinout. The pins are:...
View ArticleBuilding a 8051 programmer
Hello, I'm a newbie in microcontrollers. i thought i would make a 8051 programmer by myself (only the hardware). before going to the circuit, i would like to know how these processors (or any in...
View ArticleLed poi RGB
Hello! I built a poi similar to that http://lighttoys.cz/store/poi/zebra-poi-ft/ I have a problem with control poi, I used this mini controller...
View ArticleReaction Game
Hi All, I need a bit if advise. I am designing a childs reaction game. there are 4 LEDS and push-button type switches. The LEDs will light uo randomly and the children will hit the key relating to the...
View ArticleAndroid TV box
i have an RK3188 based , TV box type MK918 or CS918, loaded with Nexus 10. It used to work fine, but now it is prompting me to enter password for decryption of storage, something I never did. Connected...
View ArticleArduino and Nextion
hi all. Very interested in my next project to use a nextion touch screen to turn a relay bank on via arduino. Mega (after some logic) Looking everywhere on line and you tube. Can find lots that have...
View ArticleMicrocontroller not recognized by pc [HID]
Hey, So i am trying to create a 'rubber ducky' without spending 45€ So i ordered 3 microcontrollers 1 digispark and 2 fake arduino pro micro (stm8s103f3 STM8) So i plug the fake arduino pro micro's...
View ArticleControl thyristor via Arduino
I am making a project in which i need to turn off the connections of my transformer when the load current exceed 5amperes. I have installed the relay but the faculty member have urged to use thyristor...
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